F. R. Venâncio, S. A. S. Vedovello, C. A. M. Tubel, V. V. Degan, A. S. Lucato, and L. N. Lealdim, “Effect of elastomeric ligatures on frictional forces between the archwire and orthodontic bracket”, Braz. J. Oral Sci., vol. 12, no. 1, pp. 41–45, Oct. 2015.